It's an interesting argument but I don't agree. Under Ange, we've scored 80 league goals in 41 league games which is about the average for the top 10 last year. Really, only the top 3 plus Saudi Sportswashing Machine have scored significantly more. I don't see us banging in lots more goals and that then stopping the rot at the other end.
Even taking the three games this season (which admittedly is too small a sample size to draw conclusions) - we didn't create great chances v Leicester with Solanke. We played some great football, particularly first half, but we weren't missing sitters.
Against Everton, without Solanke, we scored 4. That's not to say we are better without a CF and I didn't see the Everton game but from what I heard, they were poor, open and all over the shop. We'll batter teams like that. But those results aren't what wins you things. It's about being able to win tight games - we don't do that.